South Florida of Fort Pierce, leading 6-0 after six innings of the seven- inning championship game, was awarded a 7-0 forfeit over the Clearwater Bombers when Clearwater Manager Rich Ryals refused to leave the field after being ejected by home plate umpire Ken Boggs.

The heated ending to the hotly-contested Fourth of July tournament, marred an otherwise successful 15-game event that featured three extra-inning contests.

''There was some controvery in the sixth inning over a call at home plate. After Ryals went nose to nose with the umpire, the umpire ejected Mr. Ryals,'' Stewart said. ''But Ryals refused to leave and, after allowing for the required two minutes, the umpire forfeited the game to South Florida.''

Stewart contends Cleawater, which has won more national championships that any fastpitch team in history since 1940, was ''down, hot, beat and probably wanted to go home.''

''I think Clearwater was pretty upset at the tournament in general,'' Stewart said. Ryals could not be reached by phone, and his wife, located at the couple's Dunedin home, refused to be quoted.